We have been using this prox sensor for 10 years in multiple operations. It's easy to setup, reliable and durable. It was very cost effective to use this sensor as it was adaptable to other functions and processes on our production and assembly lines. I recommend this product and manufacturer.

Product FeaturesEasy to use, Great value for money, High Quality, Durable/Performs well

is there an single line in line switch for the wire to an electric toothbrush?

I have seen an inline switch/plug for 120 volts that looks like a cube and has a male end for plugging into an outlet, female to plug the device into and a toggle switch for on/off. I'm assuming you mean a 120 volt toothbrush.